C
CHEMISTRY; METALLURGY
Load children
C02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Load children
C02F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Load children
C02F1/00
Treatment of water, waste water, or sewage
Load children
C02F1/02
by heating
Load children Filter patents View as hierarchy
C02F1/04
by distillation or evaporation
Load children Filter patents View as hierarchy
C02F1/14
using solar energy
Filter patents View as hierarchy